Photo recall effect in association with cefazolin.

Patients in remission from local dermatitis secondary to external beam radiation treatments occasionally experience recurrence with systemic chemotherapy, a reaction termed radiation recall. Chemotherapy-induced photo recall from a prior exposure to the sun also has been reported. Rare reports describe photo recall effects from more commonly used medications. We report the case of a patient who developed a photo recall reaction after treatment with cefazolin. Results of the shave biopsy were consistent with a mild phototoxic eruption.